Home / 18,971.90-26,182.10-10,475.23

Finding the Fourth Proportional to 18,971.90, 26,182.10 and 10,475.23

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Solution

The fourth proportional to 18,971.90, 26,182.10 and 10,475.23 is: 14,456.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.90 : 26,182.10 = 10,475.23 : x
  2. Step 2: Convert to fraction form
    18,971.90/26,182.10 = 10,475.23/x
  3. Step 3: Cross multiply
    18,971.90x = 26,182.10 × 10,475.23
  4. Step 4: Simplify right side
    18,971.90x = 274,263,536.57
  5. Step 5: Solve for x
    x = 274,263,536.57/18,971.90
  6. Step 6: Final answer
    x = 14,456.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.